如何删除空div

Question

I was making a light saber in CSS. The code is

 div.handle { height:10px; width:100px; background-color:black; display: inline-block; border-radius: 0 4px 4px 0; border-spacing: 0; border-collapse: collapse; } div.sword { height:6px; width:400px; background-color:white; display: inline-block; border-radius: 3px; border-spacing: 0; border-collapse: collapse; margin-top: 1px; margin-bottom: 1px; text-decoration: line-through; } div.red { box-shadow: 0 0 10px red; border:1px solid red; } 

 <div class = "handle"></div><div class = "sword red strike"></div> 

I want to strikethrough the light saber completely.

The text-decoration: line-through; property holds good only for text inside the div and not for the div only.

I saw Linethrough/strikethrough a whole HTML table row And tried it. But it doesn't work properly. So my question is "How do I strikethrough an empty div" using CSS.

Answer 1

You can do something similar using border-bottom property as in the linked question . Like so:

div.strike {
  position: relative;
}
div.strike:before {
  content: " ";
  position: absolute;
  top: 50%;
  left: 0;
  border-bottom: 1px solid #111;
  width: 100%;
}

You can change the color just by changing the value of the border-bottom color value. Here is the Jsfiddle for it.

Answer 2

I suppose that you want a light saber like in this image here below with CSS only ?

I was thinking to have an approach without using a strike-through. Then i realized that you could use the linear-gradient instead. You can improve the aligning/color of it of course.

I have added the following two lines in the code example here below

/* added these 2 lines */
background: #FF0000;
background: linear-gradient(to bottom,  #ff0000 0%,#ffdddd 50%,#ff0000 99%);

This allows you to have that red → white → red effect without the use of a strike-through. As result of this, you get a nice red saber.

 div.handle { height:10px; width:100px; background-color:black; display: inline-block; border-radius: 0 4px 4px 0; border-spacing: 0; border-collapse: collapse; } div.sword { height:6px; width:400px; /* added these 2 lines */ background: #FF0000; background: linear-gradient(to bottom, #ff0000 0%,#ffdddd 50%,#ff0000 99%); display: inline-block; border-radius: 3px; border-spacing: 0; border-collapse: collapse; margin-top: 1px; margin-bottom: 1px; text-decoration: line-through; } div.red { box-shadow: 0 0 10px red; border:1px solid red; } 

 <div class = "handle"></div><div class = "sword red strike"></div> 

Answer 3

Add a :after css element to the div.sword , that will be the line you want. text-decoration is only meant to decorate... well... text :-)

 div.handle { height:10px; width:100px; background-color:black; display: inline-block; border-radius: 0 4px 4px 0; border-spacing: 0; border-collapse: collapse; } div.sword { height:6px; width:400px; background-color:white; display: inline-block; border-radius: 3px; border-spacing: 0; border-collapse: collapse; margin-top: 1px; margin-bottom: 1px; text-decoration: line-through; position: relative; } div.sword:after { content: ""; position: absolute; width: 100%; height: 1px; top: 40%; background-color: black; } div.red { box-shadow: 0 0 10px red; border:1px solid red; } 

 <div class = "handle"></div><div class = "sword red strike"></div> 

Answer 4

Another posibility is to add a background with a gradient into it

You can also animate it

background: linear-gradient(white 2px, black 2px, black 4px, white 4px);

 div.handle { height:10px; width:100px; background-color:black; display: inline-block; border-radius: 0 4px 4px 0; border-spacing: 0; border-collapse: collapse; } div.sword { height:6px; width:400px; display: inline-block; border-radius: 3px; border-spacing: 0; border-collapse: collapse; margin-top: 1px; margin-bottom: 1px; text-decoration: line-through; background: linear-gradient(to right, red 25%, white 50%, grey 75%, black 100%); background-size: 400% 2px; background-repeat: no-repeat; background-position: 0% 2px; animation: pulse 300ms infinite; } @keyframes pulse { from {background-position: 0% 2px;} to {background-position: 100% 2px;} } div.red { box-shadow: 0 0 10px red; border:1px solid red; } 

 <div class = "handle"></div><div class = "sword red strike"></div>